Quick answers
- Does Bianca Castellanos accept Medicare assignment?
- Yes. Medicare's clinician data says Bianca Castellanos accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Bianca Castellanos's NPI number?
- 1497031892. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Bianca Castellanos works
Medicare's Facility Affiliation Data lists Bianca Castellanos at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Valley Children's HospitalMadera, CA · Children's Hospital · Emergency services: listed by Medicare · CCN 053300
Practice locations
Addresses where Bianca Castellanos is enrolled with Medicare (CMS data updated October 2, 2026).
- 1524 McHenry AveModesto, CA 95350 (209) 572‑3880
Group practices
Medicare enrollment lists Bianca Castellanos as a member of this group (CMS data updated October 2, 2026).
- Valley Childrens Medical Group50 clinicians in the group
Specialties
Other pediatricians in Modesto
Clinicians with the same Medicare primary specialty in Modesto, CA — not a recommendation.
Other clinicians in Valley Childrens Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2011 (15 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1497031892 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians